BOSCH Roller Guide Blocks FNS
Product Description High Precision Version:
Highlights
▶ Increased travel accuracy
▶ Significantly reduced frictional drag variations and low frictional drag, especially under an applied external load
▶ Highest precision
▶ Superior quality
▶ Extremely low impact on surrounding environment due to minimal oil preservation
▶ Patented entry zone design enhances travel accuracy
Roller entry:
▶ The rollers (4) are guided to the beginning of the entry zone by the roller recirculation track.
▶ The roller (5) can enter.
▶ As the distance between the steel segment and the roller guide rail becomes smaller than the roller diameter,
the roller is gradually and uniformly subjected to loading (preload).
▶ The preload is thus smoothly increased until the rollers (7) have reached their maximum preload.
The optimized entry zone:
The functionality of the entry zone is key. The steel segments are manufactured with such precision that the load on them
increases with the convex curvature. This results in especially smooth roller entry behaviour.
The rollers are no longer guided into the load-bearing zone in pulses by an inclined entry channel but by a very smooth
flexing curve, which ideally transitions tangentially into the load-bearing zone.
The extremely smooth roller entry behavior and the optimized adjustment of the entry zone in response to the actual load
are a great advantage of these high precision roller runner blocks.
Features:
- Accessories can be simply attached to the ends of the roller runner block
- Lube ports on all sides for maximum ease of maintenance
- Minimum lubrication quantities thanks to innovative channel design
- Smooth running thanks to optimized roller recirculation and guidance
- Attachments on the roller runner block can be mounted from above and below
- Further optimized entry zone geometry and high number of rollers per track minimize variation in elastic deflection and provide maximum precision travel accuracy
- The roller runner block simply slides off its arbor and onto the rail
- Integrated all-around sealing as standard
- Sizes 25 and 65
- Preload classes C1 to C5
- Version with gaskets DS, SS or AS
